CN105636314A - Dual mode operation light-emitting diode lighting device having multiple driving stages - Google Patents
Dual mode operation light-emitting diode lighting device having multiple driving stages Download PDFInfo
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- CN105636314A CN105636314A CN201510762620.3A CN201510762620A CN105636314A CN 105636314 A CN105636314 A CN 105636314A CN 201510762620 A CN201510762620 A CN 201510762620A CN 105636314 A CN105636314 A CN 105636314A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
- H05B45/48—Details of LED load circuits with an active control inside an LED matrix having LEDs organised in strings and incorporating parallel shunting devices
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Abstract
An LED lighting device includes first and second luminescent units, first and second current controllers, a line voltage sensing unit and a mode control unit. The first current controller with a first current setting is selectively coupled to the first luminescent unit according to a sensing voltage associated a range of the rectified AC voltage. The second current controller with a second current setting is coupled in series to the second luminescent unit . The line voltage sensing unit is configured to detect the sensing voltage. The mode control unit is configured to operate the LED lighting device in a first driving mode when detecting that the rectified AC voltage is within a first AC range and operate the LED lighting device in a second driving mode when detecting that the rectified AC voltage is within a second AC range.
Description
Technical field
The present invention relates to a kind of light emitting diode illuminating apparatus possessing the multiple drive power stage, particularly relate to a kind of light emitting diode illuminating apparatus possessing multiple drive power stage and Dual Drive pattern.
Background technology
(rectifiedalternative-current is exchanged in rectification, AC) in the illumination application that voltage directly drives, due to light emitting diode (lightemittingdiode, LED) it is that an electric current drives assembly, its luminosity is directly proportional to the size driving electric current, in order to reach the requirement of high brightness and brightness uniformity, generally require the light emitting diode using many series connection to provide enough light sources, and use mode that the multistage stage drives to increase the operable voltage range of light emitting diode illuminating apparatus.
Domestic power supply specification can have difference by area, and in general, magnitude of voltage is generally between 100 volts to 240 volts, and modal frequency values is 50 hertz and 60 hertz. With main two basic domestic power supply specifications in the world, north America region adopts 110��120 volts and 60 hertz, and European Region adopts 220��240 volts and 50 hertz. On the other hand, the power specification of business or factory's purposes adopts higher magnitude of voltage, to provide main equipment to use, for instance the U.S. adopts 277 volts. It should be noted that above-mentioned magnitude of voltage is only rated voltage, and the actually used voltage of electric equipment has little bit different, and voltage supply is likely to during electric equipment operates and has fluctuation.
Suitching type (switching-type) light emitting diode illuminating apparatus can operate in big voltage range (such as 85��265 volts), but linear (linear-type) light emitting diode illuminating apparatus can only operate under specific voltage. In more detail, when linear light emitting diode illuminating apparatus adopts 110 volts to drive framework or 220 volts of driving frameworks, the condition of its energy normal operation is when the value of rectified AC voltage is within the scope of small voltage, for instance (110 �� 10%) volt or (220 �� 10%) volt. When using, in the area that domestic power supply specification is 220 volts, the linear light emitting diode illuminating apparatus adopting 110 volts of driving frameworks, the power of off-rating can cause thrashing. When using, in the area that domestic power supply specification is 110 volts, the linear light emitting diode illuminating apparatus adopting 220 volts of driving frameworks, it is possible to enough power cannot be provided to light all light emitting diodes. Accordingly, it would be desirable to a kind of light emitting diode illuminating apparatus that can increase operable voltage range and Dual Drive mode operating is provided.
Summary of the invention
In view of above-mentioned problem of the prior art, it is an object of the invention to provide a kind of light emitting diode illuminating apparatus that multiple drive power stage, big operating voltage range and offer Dual Drive mode operating are provided.
For reaching above-mentioned purpose, a kind of light emitting diode illuminating apparatus possessing multiple drive power stage and Dual Drive pattern of disclosure, it includes one first luminescence unit, one second luminescence unit, one first current control unit, one second current control unit and a mode controlling unit. Described first luminescence unit includes the light-emitting device of multiple series connection, and is driven by a rectified AC voltage. Described second luminescence unit includes the light-emitting device of multiple series connection, and is driven by described rectified AC voltage. Described first current control unit senses voltage according to one and is optionally series at described first luminescence unit, is used for providing one first cut-off current, and wherein said sensing voltage is relevant to the scope of described rectified AC voltage. Described second current control unit is series at described second luminescence unit, is used for providing one second cut-off current. Described line detecting voltage unit is used for providing described sensing voltage. It is when a first voltage range that the value of described sensing voltage represents described rectified AC voltage, described first current control unit is series at described first luminescence unit by described mode controlling unit, described first luminescence unit is parallel to described second luminescence unit, so that described light emitting diode illuminating apparatus operates under one first drive pattern. It is when second voltage range when the value of described sensing voltage represents described rectified AC voltage, described mode controlling unit is by electrically isolated to described first current control unit and described first luminescence unit, described first luminescence unit is series at described second luminescence unit, so that described light emitting diode illuminating apparatus operates under one second drive pattern. When described light emitting diode illuminating apparatus operates under described first drive pattern, described first current control unit regulates and flows through one first electric current of described first luminescence unit so that the value of described first electric current is less than one first cut-off current, and described second current control unit regulates and flows through one second electric current of described second luminescence unit so that the value of described second electric current is less than one second cut-off current. When described light emitting diode illuminating apparatus operates under described second drive pattern, described first current control unit is for closing, and described second current control unit regulates one the 3rd electric current flowing through described first luminescence unit and described second luminescence unit so that the value of described 3rd electric current is less than described second cut-off current.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of light emitting diode illuminating apparatus in the embodiment of the present invention.
Fig. 2 is the light emitting diode illuminating apparatus of the present invention schematic equivalent circuit when operating under 110 volts of drive patterns.
Fig. 3 is the light emitting diode illuminating apparatus of the present invention schematic equivalent circuit when operating under 220 volts of drive patterns.
Fig. 4 is the light emitting diode illuminating apparatus of the present invention voltage-current characteristic figure when operating under 110 volts of drive patterns.
Fig. 5 is the light emitting diode illuminating apparatus of the present invention voltage-current characteristic figure when operating under 220 volts of drive patterns.
Wherein, description of reference numerals is as follows:
30 line detecting voltage unit
40 mode controlling unit
100 light emitting diode illuminating apparatus
110 power supply circuits
112 bridge rectifiers
VS alternating voltage
QP switchs
ZD Zener diode
R1��R4 resistance
C1 electric capacity
CCA1��CCA3��CCB1��CCB3Current control unit
D1��D2 path controller
A1��A3��B1��B3Light-emitting device
Detailed description of the invention
Fig. 1 is the schematic diagram of light emitting diode illuminating apparatus 100 in the embodiment of the present invention. Light emitting diode illuminating apparatus 100 includes a power supply circuit 110, includes N number of light-emitting device A1��ANOne first luminescence unit, include N number of light-emitting device B1��BNOne second luminescence unit, N number of current control unit CCA1��CCAN, N number of current control unit CCB1��CCBN, a line detecting voltage unit 30, an and mode controlling unit 40, wherein N is the integer more than 1. For illustrative purposes, Fig. 1 shows the embodiment of N=3, and now light emitting diode illuminating apparatus 100 operated with 3 grades of driving stages. But, the value of N does not limit scope of the invention.
In order to clearly demonstrate the present invention, description represents each assembly and relevant running in light emitting diode illuminating apparatus 100 in full with the graphic following symbol of middle use. IA1��IA3Represent respectively and flow through corresponding light-emitting device A1��A3Electric current. IB1��IB3Represent respectively and flow through corresponding light-emitting device B1��B3Electric current. ILEDRepresent the total current flowing through light emitting diode illuminating apparatus 100.
Power supply circuit 110 can receive the alternating voltage VS of a positive negative cycle of tool, and utilizes a bridge rectifier 112 to change alternating voltage VS output voltage in negative cycle, therefore can provide a rectified AC voltage VACWith driven for emitting lights diode illuminating device 100, wherein rectified AC voltage VACValue have cyclically-varying over time. In other embodiments, power supply circuit 110 can receive any alternating voltage VS, utilize an AC-AC electric pressure converter to carry out voltage conversion, and utilize bridge rectifier 112 that the alternating voltage VS after conversion is carried out rectification, therefore rectified AC voltage V can be providedACWith driven for emitting lights diode illuminating device 100, wherein rectified AC voltage VACValue have cyclically-varying over time. It should be noted that the structure of power supply circuit 110 does not limit scope of the invention.
As rectified AC voltage VACValue in a first voltage range time, light emitting diode illuminating apparatus 100 can operate under one first drive pattern or, as rectified AC voltage VACValue in one second voltage range time, light emitting diode illuminating apparatus 100 can operate under one second drive pattern. In the present invention, the rated value (nominalvalue) of the second voltage range is more than the rated value of first voltage range. Such as, the rated value of first voltage range can be 110 volts, and the rated value of the second voltage range can be 220 volts. It should be noted that the rated value of first voltage range or the second voltage range does not limit scope of the invention.
In one embodiment, as rectified AC voltage VACValue in one 110 volts of voltage ranges time, light emitting diode illuminating apparatus 100 can operate under the first drive pattern or, as rectified AC voltage VACValue in one 220 volts of voltage ranges time, light emitting diode illuminating apparatus 100 can operate under the second drive pattern. 110 volts of voltage ranges include rated value 110 volts and its tolerance scope, and 220 volts of voltage ranges include rated value 220 volts and its tolerance scope. For example, 110 volts of voltage ranges can between 110* (1-A%) volt and 110* (1+B%) volt, and 220 volts of voltage ranges can between 220* (1-C%) volt and 220* (1+D%) volt. 110 volts of voltage ranges and 220 volts of voltage ranges can include range of balance error (A=B, C=D) or non-symmetric error scope (A �� B, C �� D). It should be noted that the value of A, B, C, D does not limit scope of the invention.
In embodiments of the present invention, each light-emitting device A1��ANAnd B1��BNA light emitting diode or the light emitting diode of multiple concatenation, parallel connection or composition array can be included. Fig. 1 shows the framework adopting multiple concatenation light emitting diodes, it can include multiple single interface light emitting diode (single-junctionLED), multiple multiple solutions high-voltage LED (multi-junctionhigh-voltageLED) or the combination in any of dissimilar light emitting diode. But, light-emitting device A1��ANAnd B1��BNThe light emitting diode kind adopted or configuration do not limit scope of the invention. In a specific driving stage, turn on the dropout voltage (dropoutvoltage) needed for a specific currents control unit less than the cut-in voltage (cut-involtage) turned on needed for corresponding light-emitting device. When the cross-pressure of a specific light-emitting device is more than its cut-in voltage, this specific light-emitting device can in the state (ON) of conducting when the cross-pressure of a specific light-emitting device be less than its cut-in voltage, and this specific light-emitting device can in non-conduction state (OFF). The value of cut-in voltage is relevant to number and the type of the adopted light emitting diode of corresponding light-emitting device, can have different value, but do not limit scope of the invention in different application.
In light emitting diode illuminating apparatus 100, it is provided that cut-off current ISET_A1Current control unit CCA1It is optionally be connected serially to light-emitting device A by mode controlling unit 401��A3, it is provided that cut-off current ISET_A2Current control unit CCA2It is parallel to light-emitting device A2, it is provided that cut-off current ISET_A3Current control unit CCA3It is parallel to light-emitting device A3, it is provided that cut-off current ISET_B1Current control unit CCB1It is series at light-emitting device B1��B3, it is provided that cut-off current ISET_B2Current control unit CCB2It is parallel to light-emitting device B2, and cut-off current I is providedSET_B3Current control unit CCB3It is parallel to light-emitting device B3. Therefore, light-emitting device A1��A3Can by corresponding current control unit CCA1��CCA3To drive with 3 stages, light-emitting device B1��B3Can by corresponding current control unit CCB1��CCB3To drive with 3 stages. In more detail, current control unit CCA2��CCA3Can regulate respectively and flow through light-emitting device A2��A3Electric current so that electric current IA2��IA3Value respectively less than current control unit CCA2��CCA3Cut-off current ISET_A2And ISET_A3. Current control unit CCB1��CCB3Can regulate respectively and flow through light-emitting device B1��B3Electric current so that electric current IB1��IB3Value respectively less than current control unit CCB1��CCB3Cut-off current ISET_B1��ISET_B3. As current control unit CCA1It is connected serially to light-emitting device A1��A3Time, current control unit CCA1Adjustable is through light-emitting device A1Electric current so that electric current IA1Value less than current control unit CCA1Cut-off current ISET_A1��
In light emitting diode illuminating apparatus 100, line detecting voltage unit 30 can provide a sensing voltage VS, sense voltage VSValue be relevant to rectified AC voltage VACScope. Such as, sensing voltage VSCan be rectified AC voltage VACPeak value, or be rectified AC voltage VACMeansigma methods. In one embodiment, line detecting voltage unit 30 can include resistance R1��R2 and electric capacity C1, and its structure is as shown in Figure 1. The present invention can select the value of resistance R1��R2 and electric capacity C1 so that as sensing voltage VSValue represent in rectified AC voltage VACIt is when 110 volts of voltage ranges, senses voltage VSCan firing current control unit CCA1And as voltage VSValue represent in rectified AC voltage VACIt is when 220 volts of voltage ranges, voltage VSCurrent control unit CCA can be closed1. It should be noted that the structure of line detecting voltage unit 30 does not limit scope of the invention.
In light emitting diode illuminating apparatus 100, mode controlling unit 40 includes a switch QP and two path controllers D1��D2. First end of switch QP is coupled to power supply circuit 110, and the second end is coupled to light-emitting device B1��B3, and control end and be coupled to current control unit CCA3. First end of path controller D1 is coupled to light-emitting device A3And between path controller D2, and the second end is coupled to switch QP and light-emitting device B1Between. First end of path controller D2 is coupled to light-emitting device A3, and the second end is coupled to current control unit CCA1��
In embodiments of the present invention, switch QP can be P type MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) (P-channelmetal-oxide-semiconductorfieldeffecttransistor, P-MOSFET), or other possesses the assembly of similar functions. In path controller D1��D2, each path controller can include the field-effect transistor (fieldeffecttransistor of one or more diode, one or more light emitting diode, one or more diode (diode-connected), FET), the bipolar junction transistors (bipolarjunctiontransistor of one or more diode, or one or more assembly possessing similar functions BJT). It should be noted that the embodiment of mode controlling unit 40 does not limit scope of the invention.
In embodiments of the present invention, mode controlling unit 40 can separately include resistance R3��R4 and Zener diode (Zenerdiode) ZD. Resistance R3 and Zener diode ZD is coupled to first end of switch QP and controls between end. Resistance R4 is coupled to control end and the current control unit CCA of switch QP3Between. When switching QP and implementing with P-MOSFET, resistance R3��R4 and Zener diode ZD can be used to provide gate-source voltage (VGS) protection. But, the existence of resistance R3��R4 and Zener diode ZD not necessarily, and does not limit scope of the invention.
When the cross-pressure of a path controller is more than its conducting voltage, this particular path controller is forward bias voltage drop (forward-biased) and can operate as short-circuit component when the cross-pressure of a path controller is not more than its conducting voltage, and this particular path controller is reverse biased (reverse-biased) and can operate as open circuit assembly. In the present invention, mode controlling unit 40 can by path controller D1��D2 by the first luminescence unit (light-emitting device A1��A3) it is connected serially to the second luminescence unit (light-emitting device B1��B3), or the first luminescence unit is connected in parallel to the second luminescence unit.
Fig. 2 is the light emitting diode illuminating apparatus 100 of the present invention schematic equivalent circuit when operating under 110 volts of drive patterns. When detecting rectified AC voltage VACBeing when 110 volts of voltage ranges, line detecting voltage unit 30 can firing current control unit CCA1, and then the control end of second end of path controller D2 and switch QP is pulled to a relatively electronegative potential. Now, switch QP is in opening, and path controller D1 is reverse biased, and path controller D2 is forward bias voltage drop. Owing to the path controller D1 of reverse biased can cut off series relationship, light-emitting device A1��A3With light-emitting device B1��B3It is connected in parallel to each other, and is regulated (I respectively by corresponding current control unit independentlyA1��IB1). By the path controller D2 of forward bias voltage drop, current control unit CCA1Light-emitting device A can be connected serially to1��A3, and then regulate electric current IA1Value. In more detail, current control unit CCA1Adjustable is through light-emitting device A1Electric current so that electric current IA1Value respectively less than current control unit CCA1Cut-off current ISET_A1Current control unit CCA2Adjustable is through light-emitting device A2Electric current so that electric current IA2Value respectively less than current control unit CCA2Cut-off current ISET_A2Current control unit CCA3Adjustable is through light-emitting device A3Electric current so that electric current IA3Value respectively less than current control unit CCA3Cut-off current ISET_A3. In like manner, current control unit CCB1Adjustable is through light-emitting device B1Electric current so that electric current IB1Value respectively less than current control unit CCB1Cut-off current ISET_B1Current control unit CCB2Adjustable is through light-emitting device B2Electric current so that electric current IB2Value respectively less than current control unit CCB2Cut-off current ISET_B2Current control unit CCB3Adjustable is through light-emitting device B3Electric current so that electric current IB3Value respectively less than current control unit CCB3Cut-off current ISET_B3��
Fig. 3 is the light emitting diode illuminating apparatus 100 of the present invention schematic equivalent circuit when operating under 220 volts of drive patterns. When detecting rectified AC voltage VACBeing when 220 volts of voltage ranges, line detecting voltage unit 30 can close current control unit CCA1, and then the control end of switch QP is pulled to a high potential. Now, switch QP is in closing, and path controller D1 is forward bias voltage drop, and path controller D2 is reverse biased. By the path controller D1 of forward bias voltage drop, light-emitting device A1��A3Light-emitting device B can be connected serially to1��B3. Owing to the path controller D2 of reverse biased can cut off the relation of coupling, current control unit CCA1Can with light-emitting device A1��A3Electrically isolated. In other words, light-emitting device A1With light-emitting device B1By same current control unit CCB1Regulate. In more detail, current control unit CCA2Adjustable is through light-emitting device A2Electric current so that electric current IA2Value respectively less than current control unit CCA2Cut-off current ISET_A2Current control unit CCA3Adjustable is through light-emitting device A3Electric current so that electric current IA3Value respectively less than current control unit CCA3Cut-off current ISET_A3Current control unit CCB1Adjustable current ILED(ILED=IA1=IB1) so that electric current ILEDValue less than current control unit CCB1Cut-off current ISET_B1Current control unit CCB2Adjustable is through light-emitting device B2Electric current so that electric current IB2Value respectively less than current control unit CCB2Cut-off current ISET_B2Current control unit CCB3Adjustable is through light-emitting device B3Electric current so that electric current IB3Value respectively less than current control unit CCB3Cut-off current ISET_B3��
Fig. 4 is the light emitting diode illuminating apparatus 100 of the present invention voltage-current characteristic figure when operating under 110 volts of drive patterns. Fig. 5 is the light emitting diode illuminating apparatus 100 of the present invention voltage-current characteristic figure when operating under 220 volts of drive patterns. As shown in Figure 4 and Figure 5, electric current I under 110 volts of drive patternsLEDMaximum more than electric current I under 220 volts of drive patternsLEDMaximum. Under 110 volts of drive patterns and under 220 volts of drive patterns, electric current IA1With electric current IB1Characteristic identical, therefore can maintain constant luminous flux performance (fluxperformance) and the system power (V of light emitting diode illuminating apparatus 100ACAnd ILEDIntegrated value) also can remain unchanged under two kinds of drive patterns.
Under 220 volts of drive patterns during running, light emitting diode illuminating apparatus 100 is to operate in the way of 5 grades of driving stages, the maximum current value respectively I in driving stages at different levelsSET_A2��ISET_B2��ISET_A3��ISET_B3And ISET_B1, wherein ISET_B1Value maximum. For illustrative purposes, in the embodiment shown in fig. 5, ISET_B1Value and ISET_A1Value equal, ISET_B2Value and ISET_A2Value equal, and ISET_B3Value and ISET_A3Value equal. It should be noted that ISET_A2��ISET_B2��ISET_A3And ISET_B3Between magnitude relationship do not limit scope of the invention.
Although can explain at the light emitting diode illuminating apparatus 100 of 110 volts/220 volts of Dual Drive mode in description and diagram, the rated value of first voltage range or the second voltage range does not limit scope of the invention. In other embodiments, light emitting diode illuminating apparatus 100 of the present invention also can in 100 volts/220 volts Dual Drive patterns, 100 volts/23 volt 0 Dual Drive pattern, 100 volts/240 volts Dual Drive patterns, 110 volts/230 volts Dual Drive patterns, 110 volts/240 volts Dual Drive patterns, 120 volts/230 volts Dual Drive patterns, 120 volts/240 volts Dual Drive patterns, 100 volts/277 volts Dual Drive patterns, or under 110 volts/277 volts Dual Drive patterns, or 120 volts/277 volts Dual Drive mode.
For can at the light emitting diode illuminating apparatus 100 of 110 volts/277 volts Dual Drive patterns or 120 volts/277 volts of Dual Drive mode, path controller D1 can include the bipolar junction transistors of multiple diode, multiple light emitting diode, the field-effect transistor of multiple diode, multiple diode or multiple assembly possessing similar functions. Therefore, when the rated value of the second voltage range is higher, can provide higher pressure including compared with the path controller D1 of multicompartment.
The light emitting diode illuminating apparatus of the present invention utilizes current control unit flexibly to turn on multiple light-emitting device, and Land use models control unit is come according to rectified AC voltage VACScope automatically switch the drive pattern of light emitting diode illuminating apparatus. Therefore, the present invention can provide a kind of light emitting diode illuminating apparatus possessing multiple drive power stage and Dual Drive pattern.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (9)
1. the light emitting diode illuminating apparatus possessing multiple drive power stage and Dual Drive pattern, it is characterised in that including:
One first luminescence unit, it includes the light-emitting device of multiple series connection, and is driven by a rectified AC voltage;
One second luminescence unit, it includes the light-emitting device of multiple series connection, and is driven by described rectified AC voltage;
One first current control unit, it senses voltage according to one and is optionally series at described first luminescence unit, is used for providing one first cut-off current, and wherein said sensing voltage is relevant to the scope of described rectified AC voltage
One second current control unit, is series at described second luminescence unit, is used for providing one second cut-off current
One line detecting voltage unit, be used for provide described sensing voltage and
One mode controlling unit, is used for
It is when a first voltage range when the value of described sensing voltage represents described rectified AC voltage, described first current control unit is series at described first luminescence unit, described first luminescence unit is parallel to described second luminescence unit so that described light emitting diode illuminating apparatus operates under one first drive pattern and
It is when second voltage range when the value of described sensing voltage represents described rectified AC voltage, by electrically isolated to described first current control unit and described first luminescence unit, described first luminescence unit is series at described second luminescence unit, so that described light emitting diode illuminating apparatus operates under one second drive pattern, wherein
When described light emitting diode illuminating apparatus operates under described first drive pattern, described first current control unit regulates one first electric current flowing through described first luminescence unit so that the value of described first electric current is less than one first cut-off current, and described second current control unit regulates one second electric current flowing through described second luminescence unit so that the value of described second electric current less than one second cut-off current and
When described light emitting diode illuminating apparatus operates under described second drive pattern, described first current control unit is for closing, and described second current control unit regulates one the 3rd electric current flowing through described first luminescence unit and described second luminescence unit so that the value of described 3rd electric current is less than described second cut-off current.
2. light emitting diode illuminating apparatus as claimed in claim 1, it is characterised in that described mode controlling unit includes
One switch, it includes
One first end, is coupled to one first end of described first luminescence unit
One second end, be coupled to described second luminescence unit one first end and
One controls end, is coupled to described first current control unit
One first path controller, it includes
One first end, be coupled to described first luminescence unit one second end and
One second end, be coupled to described second luminescence unit described first end and
One second path controller, it includes
One first end, be coupled to described first luminescence unit described second end and
One second end, is coupled to the described control end of described switch.
3. light emitting diode illuminating apparatus as claimed in claim 2, it is characterised in that described switch is a P type MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor).
4. light emitting diode illuminating apparatus as claimed in claim 1, it is characterised in that separately include
One the 3rd current control unit, it is parallel at least one light-emitting device in described first luminescence unit, is used for regulating one the 4th electric current flowing through at least one light-emitting device described in described first luminescence unit so that the value of described 4th electric current is less than one the 3rd cut-off current of described 3rd current control unit.
5. light emitting diode illuminating apparatus as claimed in claim 4, it is characterised in that separately include
One the 4th current control unit, it is parallel at least one light-emitting device in described second luminescence unit, is used for regulating one the 5th electric current flowing through at least one light-emitting device described in described second luminescence unit so that the value of described 5th electric current is less than one the 4th cut-off current of described 4th current control unit.
6. light emitting diode illuminating apparatus as claimed in claim 5, it is characterised in that described 3rd cut-off current is less than described first cut-off current, and described 4th cut-off current is less than described second cut-off current.
7. light emitting diode illuminating apparatus as claimed in claim 1, it is characterised in that one first rated value of described first voltage range is less than one second rated value of described second voltage range.
8. light emitting diode illuminating apparatus as claimed in claim 7, it is characterised in that
Described first rated value be 100 volts, 110 volts or 120 volts and
Described second rated value is 220 volts, 230 volts, 240 volts or 277 volts.
9. light emitting diode illuminating apparatus as claimed in claim 2, it is characterised in that described first path controller includes the bipolar junction transistors of at least one diode, a light emitting diode, the field-effect transistor of a diode or a diode.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201462082149P | 2014-11-20 | 2014-11-20 | |
| US62/082,149 | 2014-11-20 | ||
| US14/872,116 | 2015-09-30 | ||
| US14/872,116 US9351363B1 (en) | 2014-11-20 | 2015-09-30 | Dual mode operation light-emitting diode lighting device having multiple driving stages |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105636314A true CN105636314A (en) | 2016-06-01 |
| CN105636314B CN105636314B (en) | 2017-12-29 |
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| CN201510762620.3A Active CN105636314B (en) | 2014-11-20 | 2015-11-10 | Possesses the light emitting diode illuminating apparatus of multiple drive power stage and dual drive pattern |
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| US (1) | US9351363B1 (en) |
| KR (1) | KR101731943B1 (en) |
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| US10045407B1 (en) * | 2017-03-14 | 2018-08-07 | Banner Engineering Corp. | Dual input voltage constant power indicator |
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Also Published As
| Publication number | Publication date |
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| US9351363B1 (en) | 2016-05-24 |
| CN105636314B (en) | 2017-12-29 |
| US20160150610A1 (en) | 2016-05-26 |
| KR101731943B1 (en) | 2017-05-24 |
| KR20160060547A (en) | 2016-05-30 |
| TWI561114B (en) | 2016-12-01 |
| TW201620337A (en) | 2016-06-01 |
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